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Hypersurface homogeneous and hypersurface self-similar models

Classical and Quantum Gravity, 1997
Dynamical systems for hypersurface homogeneous and hypersurface self-similar models with non-null symmetry surfaces are derived. The equations are cast in a geometric form based on properties of the symmetry surfaces that emphasize the close connection between the various models. Perfect fluid models are discussed in particular.
Ulf S. Nilsson, Claes Uggla, Claes Uggla
openaire   +2 more sources

On Contact of Hypersurfaces

Bulletin of the London Mathematical Society, 1981
openaire   +3 more sources

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